Results 91 to 100 of about 32,500 (209)

Polarization as a Process: The Potential of Process Ontology for Understanding Cellular Symmetry Breaking

BioEssays, Volume 48, Issue 4, April 2026.
Process ontology proposes that biological systems are best understood as composed of dynamic processes rather than static components. However, application to concrete research practice has remained challenging. We use cell polarity in budding yeast as a case study to examine the implications of applying process philosophy to cell biological research ...
Marieke M. Glazenburg, Liedewij Laan
wiley   +1 more source

Multi‐parametric MRI synthesis for glioblastoma from quantitative MR fingerprinting: Quantitative synthetic neural network (QS‐Net)

Medical Physics, Volume 53, Issue 4, April 2026.
Abstract Background Diagnosis and treatment of glioblastoma (GBM) rely on multiparametric MRI (mpMRI), but mpMRI is time‐consuming and costly. Deep learning–based synthesis methods have been proposed to streamline acquisition; however, their generalizability is limited by variability in qualitative input contrasts across sites and scanners.
Yimin Ni, Chenyang Liu, Wen Li, Ling Lin, Rushan Ouyang, Peng Cao, Ho‐Fun Victor Lee, Aya El Helali, Yat‐Lam Wong, Xiang Wang, Peilin Wang, Ge Ren, Jing Cai, Tian Li   +13 more
wiley   +1 more source

Emerging p‐Block Metal‐Based Electrocatalysts for Energy Conversion

Small, Volume 22, Issue 23, 22 April 2026.
P‐block metal‐based catalysts have emerged as efficient and sustainable alternatives to precious metal electrocatalysts for energy conversion. This review comprehensively surveys diverse p‐block metal‐based architectures—including anisotropic and homogeneous systems—and systematically elucidates their roles in key electrocatalytic reactions, such as ...
Jack Jon Hinsch, Jinqiu Hu, Li Wang, Yun Chen, Huai Qin Fu, Zhenzhen Wu, Mengqing Hu, Mengyang Dong, Porun Liu, Lei Zhang, Yun Wang, Zhonghong Xia, Liang Wang   +12 more
wiley   +1 more source

Turing instability of anomalous reaction–anomalous diffusion systems

European Journal of Applied Mathematics, 2008
Linear stability theory is developed for an activator–inhibitor model where fractional derivative operators of generally different exponents act both on diffusion and reaction terms. It is shown that in the short wave limit the growth rate is a power law of the wave number with decoupled time scales for distinct anomaly exponents of the different ...
Nec, Y., Nepomnyashchy, A. A.
openaire   +1 more source

Pattern Formation by Boundary Forcing in Convectively Unstable, Oscillatory Media With and Without Differential Transport

, 2004
Motivated by recent experiments and models of biological segmentation, we analyze the exicitation of pattern-forming instabilities of convectively unstable reaction-diffusion-advection (RDA) systems, occuring by means of constant or periodic forcing at ...
J. D. Murray, L. Wolpert, M. Menzinger, Michael Menzinger, Patrick N. McGraw, R. J. Briggs, R. Kapral   +6 more
core   +1 more source

Cell‐Size Confinement Drives Size‐Dependent Scaling of Intracellular Reaction‐Diffusion Waves for Robust Patterning

Small Science, Volume 6, Issue 4, April 2026.
Intracellular reaction‐diffusion (iRD) waves scale their wavelength to space size when they are confined within cell‐size spaces, despite having intrinsic wavelength in open systems. This wavelength selection ensures the scaling of the wave shape and the velocity, preserving these essential properties against physicochemical perturbations. This scaling
Sakura Takada, Shunshi Kohyama, Miho Yanagisawa, Nobuhide Doi, Natsuhiko Yoshinaga, Kei Fujiwara   +5 more
wiley   +1 more source

Turing Instability and Pattern Formation on Directed Networks

SSRN Electronic Journal, 2022
Pattern formation, arising from systems of autonomous reaction-diffusion equations, on networks has become a common topic of study in the scientific literature. In this work we focus primarily on directed networks. Although some work prior has been done to understand how patterns arise on directed networks, these works have restricted their attentions ...
openaire   +3 more sources

Spike patterns in a reaction-diffusion-ode model with Turing instability

, 2013
We explore a mechanism of pattern formation arising in processes described by a system of a single reaction-diffusion equation coupled with ordinary differential equations.
Härting, Steffen, Marciniak-Czochra, Anna   +1 more
core   +1 more source

Bifurcation Analysis of a Resource–Consumer System With Explicit Spatiotemporal Memory

Studies in Applied Mathematics, Volume 156, Issue 4, April 2026.
ABSTRACT In ecological systems, animal movement is often influenced by memory and spatial cognition, especially in advanced species. This paper investigates the dynamics of a diffusive resource–consumer model incorporating explicit spatiotemporal distributed memory, where memory effects are modeled as distributed delays in both time and space.
Luhong Ye, Hao Wang
wiley   +1 more source

Turing instabilities and patterns near a Hopf bifurcation [PDF]

Applied Mathematics and Computation, 2005
27 pages, 5 ...
openaire   +3 more sources